Grundfos ALLDOS KM 251 - Page 51

KM 251 en Spare Parts
V1.0 51
1) The material of the valve housing is only specified, if it is included in the spare parts set,
for valves after DN 20 and stainless steel valves, only the inner parts of the valves are replaced.
2) Spare parts set only for replacing diaphragm (e.g. following diaphragm breakage) without valve
parts.
ALLDOS gear oil
Alternative special oils for white oil (Paraffin 55 DAB7)
Spare parts for double diaphragm system
553-259 251 16,00 bar DN 8 1.4401 Stainless steel Viton
553-1318 251 DN 8 PVC 1.4401 EPDM EPDM
553-251-1 251 25,00 bar DN 4/8 Stainless steel PTFE Viton
Diaphragm breakage
safety device
553-253-1 251 DN 8 PVC Glass Viton Viton
Diaphragm breakage
safety device
553-254-1 251 16,00 bar DN 4/8 1.4401 Viton Viton
Diaphragm breakage
safety device
553-256-1 251 DN 8 PP Glass Viton Viton
Diaphragm breakage
safety device
553-257-1 251 DN 8 PVDF PTFE PTFE PTFE
Diaphragm breakage
safety device
553-259-1 251 16,00 bar DN 8 1.4401 Stainless steel Viton
Diaphragm breakage
safety device
553-405 251 — 2)
Diaphragm breakage
safety device
Order
number
Pump
type
Pressure
Nominal width/Valve material
Version
Housing 1) Balls Seat Gasket
Pump type Order No. Description
KM 251 single / double 555-300 1.3 l white oil (Paraffin 55 DAB7)
Manufacturer Designation
ARAL Autin PL (DAB7)
BP BP-Energol WM2
ESSO Esso Marcol 82 (M82)
Fina Fina Vestan A 70 B
Texaco Texaco white oil pharmaceutical 70
Shell Odina 15
Order No.
Bleed pressure of
pump
Description
Index No.
541-011 up to 10 bar Contact manometer up to 10 bar
541-012 up to 100 bar Contact manometer up to 100 bar
541-011.1 up to 10 bar
Contact manometer up to 10 bar
in flameproof protection version
541-012.1 up to 100 bar
Contact manometer up to 100 bar
in flameproof protection version
553-410
Filling components, consisting of: 0.004 kg
paraffin oil in PE bottle, 2 x 250 mm PE filling hose
4/6 and a graduated throw-away syringe